Kitchen-sink water-stop plug



F. C. GROVER. KITCHEN SINK WATER STOP PLUG. APPLICATION FILED MAR. 29, 1922. L42,22.;

Patented Sept. 5, 1922 'fllll lll ldt Ti /1. 101111! attorney Patented Sept. 5, 1922.

entree ar-ares FLORENCE CRANE GROVER, OF HOLLYWOOD, CALIFORNIA.

KITCHEN-SINK WATER-STOP PLUG.

Application filed March 29, 1922.- Serial No. 547,650.

7 '0 all whom it may concern:

Be it known that I, FLORENCE CRANE Gnovnn, a citizen of the United States, and a resident of Hollywood, in the county of Los hngeles, State of California, have invented a new and useful Improvement in Kitchen-Sink Water-Stop Plugs, of which the following is a specification.

This invention relates to a simple, economical plug to be inserted in the ordinary drain-pipe say in a kitchen sink to close the same effectually.

One of the objects of this invention is to provide such a plug of simple constructions which may be used in any ordinary drainpipe without requiring any special construction of drain-pipe or sink to receive it.

Other objects will appear from the following more detailed description, in which'the drawing represents by way of illustration, in Figure 1, a section taken through the stop plug; Figure 2, a plan view of the plug;

and Figure 3, a section of the device in place in a kitchen sink.

Referring briefly to the prior art, it has been quite common to make sink stop plugs of various kinds, but primarily they have consisted of a thick disc of rubber carrying a ring and usually an unsightly, unsanitary chain; or else a metal or other plug constructed to coact with a specially designed sink, or drain-pipe.

By my invention, I avoid both the difliculties, and expense of these prior constructions. In the detailed description of my invention, which I give below, it is to be understood that many changes may be made by those skilled in the art, and yet the spirit and function of my device will remain the same.

In constructing my device, I take a disc of metal 2, preferably brass which may or may not be nickel-plated or otherwise artistically finished. The diameter of the disc may vary, but 3 inches has been found to be a serviceable size, made from stock about one-sixteenth of an inch in thickness, although the thickness of this material is optional. This disc is preferably given a slightly concave flexure as shown in'Figure 1, for purposes, more particularly set forth below. i

A disc approximately the same diameter is now provided from a water-impervious material such as cork, leather, rubber, etc, the cork serving in the present instance admirably. This disc of material is also made preferably from relatively thin material, say about oneeighth of an inch thick, sinceit is one of the important con-' tributions of my invention, that, thin material can be used in making these stops. Such material need not be more than inch thick for example, but is preferably thinner as indicated. The two discs are now as sembled. For this purpose a staple made,

of more or less heavy, spring wire is preferable, as illustrated in the drawing.- The shank of the staple has a notch 5 and a coacting shoulder 6. This staple is inserted through perforations in the two discs, and it is also desirable but not absolutely necessary to solder the staple to the metal disc rigidly. It is also likewise desirable to attach the two discs together rigidly as by screws, rivets, etc, 1, 1 shown in the drawing. The upper part of the staple, 4, forms a handle by means of which the stop may be removed or placed in position, or to which a chain may be attached.

This stop is particularly useful in .conn'ection with the ordinary perforated cap metal disc forces the water-impervious material against the floor of the sink, simply and effectually closing the drain-pipe outlet. It is to be noted that by the disclosed means, athin disc of water-impervious maclosure used on the drain-pipes of sinks, etc.

terial may be used because the strain of placing and removing the device is carriedv wholly bythe metal.

Having now disclosed the best means of carrying out my invention, it being understood that obvious changes in construction and substitution of materials may be made therein by those skilled in the art, I clain1- A plug stop comprising a metal disc and a second disc of cork secured together by means of a staple, the metal disc being flexed concavely the shank of the staple being formed to act as a securing means to lock the plug stop in position over an outlet to be closed, whereby the second disc is wedged 10 against the floor of the sink, the diameters of the discs being substantially equal to each other and greater than the diameter of the outlet to be closed.

FLORENCE CRANE GROVER. 

